DP83256VF National Semiconductor, DP83256VF Datasheet - Page 33
![no-image](/images/manufacturer_photos/0/4/469/national_semiconductor_sml.jpg)
DP83256VF
Manufacturer Part Number
DP83256VF
Description
IC FDDI LAYER CTRLR 160PQFP
Manufacturer
National Semiconductor
Series
PLAYER+™r
Datasheet
1.DP83256VF.pdf
(144 pages)
Specifications of DP83256VF
Controller Type
physical layer controller
Voltage - Supply
4.75 V ~ 5.25 V
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
160-BFQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Current - Supply
-
Interface
-
Other names
*DP83256VF
- Current page: 33 of 144
- Download datasheet (997Kb)
4 0 Modes of Operation
Long Internal Loopback
The Long Internal Loopback mode implements the longest
loopback path that is completely within the PLAYER
vice
The Long Internal Loopback mode can be used to test the
functionality of the PLAYER
Recovery function and to test the data paths between the
PLAYER
When in the Long Internal Loopback mode the PLAYER
device performs the following functions
Directs the output data of the Transmitter Block to the
input of the Clock Recovery Module through an internal
path
a
device and MACSI devices before ring insertion
a
device including the Clock
(Continued)
FIGURE 4-4 Long Internal Loopback
a
de-
a
33
The level of the Quiet symbols transmitted through the
PMRD
transmitter off level
If both Short Internal Loopback and Long Internal Loopback
modes are selected Long Internal Loopback mode will
have priority over Short Internal Loopback mode This is the
longest loopback path within the PLAYER
Note that the LILB path is disconnected and should not be
used when the Alternate PMD Interface is active
See Figure 4-4 Long Internal Loopback
Ignores the PMD Data Indicate pins (PMID
Outputs Quiet symbols through the PMD Data Request
pins (PMRD
g
pins during loopback is automatically set to the
g
)
a
device
g
TL F 11708 – 26
)
Related parts for DP83256VF
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
![MC1408P8](/images/manufacturer_photos/0/4/469/national_semiconductor_tmb.jpg)
Part Number:
Description:
National Semiconductor [8-Bit D/A Converter]
Manufacturer:
National Semiconductor
Datasheet:
![CS1301](/images/manufacturer_photos/0/4/469/national_semiconductor_tmb.jpg)
Part Number:
Description:
National Semiconductor [Media Coprocessor]
Manufacturer:
National Semiconductor
Datasheet:
![LM4832N](/images/manufacturer_photos/0/4/469/national_semiconductor_tmb.jpg)
Part Number:
Description:
Digitally Controlled Tone and Volume Circuit with Stereo Audio Power Amplifier, Microphone Preamp Stage and National 3D Sound
Manufacturer:
National Semiconductor
Datasheet:
![LM4832M](/images/manufacturer_photos/0/4/469/national_semiconductor_tmb.jpg)
Part Number:
Description:
Digitally Controlled Tone and Volume Circuit with Stereo Audio Power Amplifier, Microphone Preamp Stage and National 3D Sound
Manufacturer:
National Semiconductor
Datasheet:
![LM4546](/images/manufacturer_photos/0/4/469/national_semiconductor_tmb.jpg)
Part Number:
Description:
AC97 Rev 2 Codec with Sample Rate Conversion and National 3D Sound
Manufacturer:
National Semiconductor
![LP2981AIM5X-2.7](/images/manufacturer_photos/0/4/469/national_semiconductor_tmb.jpg)
Part Number:
Description:
Manufacturer:
National Semiconductor
Datasheet:
![LP3988IMFX-2.6](/images/manufacturer_photos/0/4/469/national_semiconductor_tmb.jpg)
Part Number:
Description:
Manufacturer:
National Semiconductor
Datasheet:
![LPV321M7X](/images/manufacturer_photos/0/4/469/national_semiconductor_tmb.jpg)
Part Number:
Description:
General Purpose, Low Voltage, Low Power, Rail-to-Rail Output Operational Amplifiers
Manufacturer:
National Semiconductor
Datasheet:
![ADC0882CCN](/images/manufacturer_photos/0/4/469/national_semiconductor_tmb.jpg)
Part Number:
Description:
8-bit 20 MSPS flash A/D converter.
Manufacturer:
National Semiconductor
Datasheet:
![LM837N](/images/manufacturer_photos/0/4/469/national_semiconductor_tmb.jpg)
Part Number:
Description:
Low Noise Quad Operational Amplifier
Manufacturer:
National Semiconductor
Datasheet:
![DS3650J](/images/manufacturer_photos/0/4/469/national_semiconductor_tmb.jpg)
Part Number:
Description:
Quad Differential Line Receivers
Manufacturer:
National Semiconductor
Datasheet:
![DS3662J](/images/manufacturer_photos/0/4/469/national_semiconductor_tmb.jpg)
Part Number:
Description:
Quad High Speed Trapezoidal? Bus Transceiver
Manufacturer:
National Semiconductor
Datasheet:
![DS7820A](/images/manufacturer_photos/0/4/469/national_semiconductor_tmb.jpg)
Part Number:
Description:
Dual Line Receiver
Manufacturer:
National Semiconductor
Datasheet:
![DP8481J](/images/manufacturer_photos/0/4/469/national_semiconductor_tmb.jpg)
Part Number:
Description:
TTL to 10k ECL Level Translator with Latch
Manufacturer:
National Semiconductor
Datasheet: